.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  overflow: hidden;
  width: 600px;
  margin: 0 auto;
}
.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 8px;
  overflow: hidden;
  padding: 2px;
  transition: opacity 300ms ease-in-out;
  width:500px;
}
.flex {
  display: flex;
  max-width: 100%;
  margin-top: 30px;
}